/*+
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 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.+
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.+
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 * +
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 * This code is free software; you can redistribute it and/or modify it+
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 * under the terms of the GNU General Public License version 2 only, as+
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 * published by the Free Software Foundation.+
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 * +
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 * This code is distributed in the hope that it will be useful, but WITHOUT+
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License+
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 * version 2 for more details (a copy is included in the LICENSE file that+
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 * accompanied this code).+
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 * +
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 * You should have received a copy of the GNU General Public License version+
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 * 2 along with this work; if not, write to the Free Software Foundation,+
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.+
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 * +
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA+
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 * or visit www.oracle.com if you need additional information or have any+
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 * questions.+
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 */+
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+
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/**+
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 * JDK-8011893: JS Object builtin prototype is not thread safe+
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 *+
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 * @test+
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 * @run+
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 */+
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+
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var a = {};+
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var thread = new java.lang.Thread(new java.lang.Runnable() {+
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    run: function() {+
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        print("Thread starts");+
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        for (var i = 0; i < 1000000; i++) {+
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            // Unsubscribe to builtin, subscribe to new proto+
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            var b = Object.create(a);+
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        }+
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        print("Thread done");+
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    }+
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});+
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+
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print("Main starts");+
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thread.start();+
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for (var j = 0; j < 1000000; j++) {+
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    // Subscribe to builtin prototype.+
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    a = {};+
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}+
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+
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thread.join();+
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print("Main done");+
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